no such "things" at the opposite part of leaves? https://www.google.com/search?biw=1366&bih=645&tbm=isch&sa=1&ei=-xh6XdHKLaSU1fAP07Ow2A8&q=Quadraspidiotus&oq=Quadraspidiotus&gs_l=img.3...10639.10800..11057...0.0..0.126.225.1j1......0....1..gws-wiz-img.RW2q0DaAVZY&ved=0ahUKEwiRtN39hMvkAhUkShUIHdMZDPsQ4dUDCAY&uact=5#imgrc=9qTNHczc3KAqxM:
https://www.google.sk/search?q=stitnicky&tbm=isch&source=iu&ictx=1&fir=1ucn2YAxxAG0DM%3A%2Cgjij0f8AJ6f4TM%2C_&vet=1&usg=AI4_-kRhTMrH9xyWtCUCxt_TJJDCMCj8BQ&sa=X&ved=2ahUKEwjJxJDng8vkAhXID2MBHdz9BUcQ9QEwAHoECAkQBg#imgrc=m4Zrxz7t1fMaXM:&vet=1
https://www.google.sk/search?q=stitnicky&tbm=isch&source=iu&ictx=1&fir=1ucn2YAxxAG0DM%3A%2Cgjij0f8AJ6f4TM%2C_&vet=1&usg=AI4_-kRhTMrH9xyWtCUCxt_TJJDCMCj8BQ&sa=X&ved=2ahUKEwjJxJDng8vkAhXID2MBHdz9BUcQ9QEwAHoECAkQBg#imgrc=_xTkIFXSlMTbIM:&vet=1
or in the past?
also could be brown/semi transparent, and timy small
https://www.google.com/search?biw=1366&bih=645&tbm=isch&sa=1&ei=-xh6XdHKLaSU1fAP07Ow2A8&q=Quadraspidiotus&oq=Quadraspidiotus&gs_l=img.3...10639.10800..11057...0.0..0.126.225.1j1......0....1..gws-wiz-img.RW2q0DaAVZY&ved=0ahUKEwiRtN39hMvkAhUkShUIHdMZDPsQ4dUDCAY&uact=5#imgrc=mCYCiNesga7NrM: